Inguinal ureter herniation evaluated with magnetic resonance imaging: a case report

A Rare Case of Inguinal Hernia of a Ureter Belonging to a Duplex Kidney

Introduction

Inguinal herniation of the ureter is a rare entity that occurs either as a complication of renal transplantation or spontaneously. Patients may suffer from obstructive uropathy or groin pain due to the unusual ectopic course of the ureter. This case report highlights the importance of recognizing a ureteroinguinal hernia.

Methods

In this case report, we present a 75-year-old man with a surgical history of a right inguinal hernia repair who was referred to our center with burning left inguinal pain that persisted for two weeks. The patient's history and physical examination were consistent with an inguinal hernia. The suspected indirect inguinal hernia was found on preoperative imaging to be a tubular structure distinct from the intestine or adjacent organs. An open exploration of the inguinal canal was performed to prevent further hernia development.

Results

The unusual structure in the inguinal canal turned out to be an ectopic ureter originating from the left upper pole moiety of the left duplex kidney (i.e., with duplicated ureters) and containing concentrated urine, as confirmed on a postoperative computerized tomography urogram.

Conclusion

It is crucial to perform a thorough clinical examination and utilize adequate imaging modalities before surgical procedures when encountering unidentified structures.

Sliding ureteral inguinal hernia: An uncommon embryological trick. Case report and literature review

Introduction

Inguinoscrotal herniation of the bladder is a rare clinical entity, with a frequency between 0.5% and 4% of all inguinal hernias. When the whole bladder and ureters migrate into the scrotum, it may cause urinary disorders as hydronephrosis.

Case report

A 77-year-old male patient suffering from hypertrophic obstructive cardiomyopathy, obesity and diabetic disease presented with urinary disorders and left-sided inguinoscrotal hernia. Under clinical suspicion of sigmoid colon involvement in the inguinal canal, abdominal and pelvic computed tomography (CT scan) with endovenous contrast was performed, revealing a left inguinoscrotal hernia, containing the sigmoid colon and the left pelvic ureter causing left hydronephrosis.

Discussion

Without create urinary bladder wall leakage, the content of the hernial sac was reduced into the abdominal cavity. Previous subarachnoid anesthesia a left hernioplasty was performed by means of Lichtenstein's method with self-fixating mesh (Bard Adhesix) and subsequent complete resolution of the hydronephrosis.

Conclusion

Ureter involvement should be suspected when a clinical inguinal hernia is diagnosed concurrently with unexplained hydronephrosis, renal failure, or urinary tract infection, as in the case described. When suspected, the preoperative diagnosis, particularly with CT scan, is essential to avoid complications and to reduce risk of bladder and ureter injuries during hernia repair.

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Sliding ureteral hernia

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Renal failure

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Abdominal surgery

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Preoperative clinical settings